6A6-TP Equivalent & Substitute Parts

Part Overview

The 6A6-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600 V DC reverse voltage and 6 A average rectified current in an R-6 axial through-hole package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original component is no longer available or procurement is restricted.

Substiute Parts

6A6-TP

Micro Commercial CoIn Stock: 14296A6-TP Datasheet

Current PartRFQ

1N5552

Solid State Inc.In Stock: 21141N5552 Datasheet

SimilarRFQ

6A06-G

Comchip TechnologyIn Stock: 10936A06-G Datasheet

SimilarRFQ

GI756-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 5809GI756-E3/54 Datasheet

SimilarRFQ

GI756-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 6316GI756-E3/73 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6A6-TP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 600 V minimum
• Current - Average Rectified (Io): 6 A minimum
• Mounting Type: Through Hole
• Package / Case: R-6 or P600 axial configuration
• Technology: Standard recovery rectifier diode

Secondary Compatibility Factors:

• Forward voltage (Vf) at rated current
• Reverse leakage current
• Operating temperature range
• RoHS3 compliance
• Recovery speed classification

Substitute parts are grouped into two categories:

Category A - Direct Electrical & Mechanical Equivalents (6 A Rating): Parts that match the 6 A current rating, 600 V reverse voltage, and through-hole axial package configuration. These parts are interchangeable in applications where the original 6A6-TP specifications are required.

Category B - Reduced Current Rating (3 A Rating): Parts that meet the 600 V reverse voltage and through-hole axial package requirements but with reduced current capacity. These are suitable only for applications where the circuit current demand does not exceed the substitute part's rating.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (6 A Current Requirement):

The 6A06-G (Comchip Technology) is the primary substitute for the 6A6-TP. Both parts share identical electrical ratings (600 V, 6 A), matching package configuration (R-6 axial), and operating temperature range (-55°C ~ 125°C). The 6A06-G is in Active product status with ROHS3 compliance and MSL 1 rating. Forward voltage is slightly higher (1 V vs. 950 mV), representing a negligible difference in circuit performance.

The GI756-E3/54 and GI756-E3/73 (Vishay General Semiconductor) are functionally equivalent alternatives with identical electrical specifications (600 V, 6 A). These parts feature P600 axial packages instead of R-6, requiring physical board layout verification. Both are in Active status with ROHS3 compliance. Forward voltage is lower (900 mV), and reverse leakage is reduced (5 µA vs. 10 µA), representing improved performance characteristics. Operating temperature range extends to 150°C, providing enhanced thermal margin.

For Reduced Current Applications (3 A Maximum):

The 1N5552 (Solid State Inc.) is suitable only for applications where circuit current does not exceed 3 A. This part maintains 600 V reverse voltage rating and through-hole axial mounting. It is in Active product status with ROHS3 compliance. The 1N5552 offers superior reverse leakage (1 µA) and extended operating temperature range (-65°C ~ 200°C). Forward voltage is 1 V at 3 A. Physical package compatibility must be confirmed, as the supplier device package is listed as Axial without specific case designation.

Compliance & Availability:

All substitute parts are ROHS3 compliant and carry EAR99 ECCN classification. The Vishay parts (GI756-E3/54 and GI756-E3/73) offer the highest inventory availability (5770 and 6252 units respectively), providing supply chain security for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the 6A06-G directly replace the 6A6-TP without circuit modification?

A: Yes. The 6A06-G matches all critical electrical parameters (600 V reverse voltage, 6 A current rating) and operates within the same temperature range (-55°C ~ 125°C). The R-6 axial package is identical, requiring no board layout changes. The forward voltage difference (1 V vs. 950 mV) is within standard rectifier diode tolerance and does not require circuit redesign.

Q: What is the difference between the R-6 and P600 packages?

A: Both are axial through-hole packages for rectifier diodes. The R-6 and P600 designations refer to different physical case styles from different manufacturers. While both are axial configurations suitable for through-hole mounting, the physical dimensions and lead spacing may differ. Board layout compatibility must be verified before substitution.

Q: Can the 1N5552 be used in place of the 6A6-TP?

A: The 1N5552 is suitable only if the circuit current requirement does not exceed 3 A. The 6A6-TP is rated for 6 A average rectified current, while the 1N5552 is rated for 3 A. Using the 1N5552 in a 6 A application will result in component failure. Verify circuit current demand before selecting this substitute.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (6A06-G, GI756-E3/54, GI756-E3/73, and 1N5552) are ROHS3 compliant, matching the compliance status of the original 6A6-TP.

Q: Which substitute part offers the best performance improvement?

A: The GI756-E3/54 and GI756-E3/73 (Vishay parts) provide measurable improvements: lower forward voltage (900 mV vs. 950 mV), reduced reverse leakage (5 µA vs. 10 µA), and extended operating temperature range (-50°C ~ 150°C vs. -55°C ~ 125°C). These characteristics represent enhanced reliability and efficiency compared to the original 6A6-TP.

Q: What is the difference between GI756-E3/54 and GI756-E3/73?

A: Both parts are electrically and mechanically identical. The suffix designations (E3/54 and E3/73) represent different tape and reel configurations or manufacturing date codes from Vishay. Selection between these two parts is based on packaging and inventory availability rather than electrical performance.

Q: Is the 6A6-TP still available for purchase?

A: The 6A6-TP is classified as "Not For New Designs," indicating end-of-life status. While 1393 units are currently in stock, procurement may become restricted. Active substitute parts (6A06-G, GI756-E3/54, GI756-E3/73) are recommended for new applications and ongoing supply chain planning.

Q: What is the MSL rating and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life with no moisture precautions required. The 6A6-TP, 6A06-G, GI756-E3/54, and GI756-E3/73 all carry MSL 1 rating, meaning they can be stored and handled without special humidity controls. The 1N5552 lists MSL as "Not Applicable," indicating this parameter is not specified by the manufacturer.